# Clinometer + bubble level — + slope finder (3 in 1)

> Precise slope measurement tool with multiple modes and calibration options. (iPhone/iPad app by Peter Breitling.)

- Source: https://appshunter.io/ios/app/clinometer-plus-bubble-level/id286215117 (this page in markdown: same URL + `.md`)
- Developer: [Peter Breitling](https://appshunter.io/developer/286215120)
- Category: Utilities, Productivity
- Price: $1.99 with in-app purchases
- Rating: 4.00/5 from 42 App Store ratings · 626 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 14 MB
- Languages: American English, French (France), German (Germany)
- Released: 2019-02-07
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/clinometer-plus-bubble-level/id286215117/reviews.md

## What is Clinometer + bubble level?

This professional tool called Clinometer is the most precise (all you can get with some calculations) slope measurement tool for the iPhone, iPod Touch and iPad using all sides of the device plus the camera. It can be used for simple applications like aligning a frame as well as for more sophisticated fields of applications where an arbitrary slope needs to be measured exactly. Read the reviews (and write your own) for all the applications you find! Thank for all your positive feedback! Please use our support link if you have questions and suggestions, we don't read the iTunes reviews every day!

With this tool, the slope can be measured by all edges of the device and through the camera. The current features include:

◆ 3 Modes (incl. auto switching): Clinometer mode (auto when holding upright), Camera mode (any direction, manual activation) and Bubble level (smoothly fading in when holding flat).

◆ Relative angles: Besides measuring absolute angles, for every mode you can measure the relative angle between device positions

◆ Advanced two way calibration on all sides: For every 4 sides plus the bubble mode you can calibrate in two steps, which allows you to calibrate exactly even on non-level surfaces. Each direction can be calibrated individually to achieve the optimal precision. 

◆ Speech synthesis: The device will speak the current reading, so you don't have to watch the display while measuring/aligning your object.

◆ Five different unit modes: The device can display the slope in degrees (rounded or in tenth of degrees), percentage, rise over run (common for roof slope measurement in :12) and 1V:H (common in engineering)

◆ Dial Rotation: You can smoothly rotate the background dial and thus define which side of the device represents 0° and 90° degrees. 

◆ Motion-sensitive Lock feature: Besides the common instant simple tap hold mechanism you can activate the motion-sensitive lock. If activated the device waits for the final lock until you hold your device steady enough for at least 2 seconds. You can set the lock sensitivity between 0.1° and 1.0° degrees. 

◆ Peer Mode: Use two devices to measure angles: One as a display, the other as the measurement device that can be attached to the hardware you want to align. 

◆ Fullscreen Mode: The full screen mode can be toggled by tapping the center of the screen and by the upper and lower arrows in the center. This prevents you from erroneous inputs while measuring.

◆ Different color schemes: Press the S/C Button to instantly switch the color. The color can be selected differently for the bubble and the clinometer mode. The predefined color sets include day and night color schemes (Black on White, White on Black and Red). 

◆ Adjustable Auto-Lock: You can prevent the device from turning into the sleep mode. 

According to wikipedia: An inclinometer or clinometer is an instrument for measuring angles of slope (or tilt), elevation or inclination of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator. 

For recreational use only. After the calibration it CAN (!) be very accurate especially for the main axis after calibration. The measurement is performed as well as possible (we try our best) by using the three inbuilt accelerometers. 

THANK YOU FOR YOUR SUPPORT! 

We will improve the application long-term. This was the first application of this kind shortly after the opening of the App Store. Since then it is continuously updated and enriched with new features.

## Key features

- Multiple measurement modes (Clinometer, Camera, Bubble Level)
- Relative angle measurement
- Advanced two-way calibration
- Speech synthesis for readings
- Five unit modes (degrees, percentage, rise/run)
- Motion-sensitive lock feature
- Peer mode for two-device measurements

## Pricing and in-app purchases

Base price: $1.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Support Updates Level Bronze | $0.99 | one-time |
| Support Developer Level Silver | $2.99 | one-time |
| Support Developer Level Gold | $7.99 | one-time |


## Chart rankings

- #145 in Top Paid · Utilities (US App Store)

## What do users think of Clinometer + bubble level?

Overall sentiment: positive

**Pros**

- 👍 Accurate and reliable
- 🚀 Easy to use and calibrate
- 💡 Useful for various applications (construction, DIY, etc.)
- 🔍 Helpful for aligning satellite dishes, solar panels, and more
- 🔍 Great for leveling and measuring angles
- 👍 Impressive graphics and user interface

**Cons**

- 🐛 Calibration issues on some devices
- 🐛 Occasional crashes or freezes
- 🔍 Not accurate enough for some specialized uses (e.g., golf greens)
- 🔍 Lack of clear instructions or tutorial

**Commonly reported bugs**

- Calibration not working correctly on some devices
- App freezing or crashing on launch for some users
- Readings not accurate when device is in a case

**Most requested features**

- Dark mode or night-friendly interface
- Ability to measure average slope over a distance
- Option to display both degrees and percent slope
- Integration with camera for sighting and measuring angles
- Bluetooth connectivity to pair multiple devices

## Recent user reviews (10 of 626)

All indexed reviews: https://appshunter.io/ios/app/clinometer-plus-bubble-level/id286215117/reviews.md

### 5/5 — Easy

*2026-08-08, version 4.9.4*

A very easy and straightforward measuring tool.  Does just what needed to measure steep slopes around my property.  Makes this safer to know where I can take the ride on mower and the scrub cutter.

### 5/5 — Finally a real accurate tool

*2026-07-04, version 4.9.4*

This is the only clinometer / level tool i found on the app store that uses a two step process to properly and accurately calibrate it. All the others require you to find a perfectly level surface to calibrate. Fine at home, but out in the field thats not going to happen. Brilliant well designed tool. And an outright purchase no subscription.

### 5/5 — Updates???

*2025-09-15, version 4.9.4*

Tolle App, seit gefühlten 10 Jahren. Wäre toll, wenn der Entwickler sich um künftige iOS Versionen kümmern würde, damit die App noch sehr lange funktioniert!!!

### 1/5 — Does not work with Apple Watch. I want a refund!

*2025-06-04, version 4.9.4*

Does not work with Apple Watch!

### 3/5 — Keine Aufnahmefunktion

*2025-02-20, version 4.9.4*

naja, die App ist ganz nett. Allerdings habe ich nirgends gefunden, dass man die Messung abspeichern kann oder ein Foto davon machen kann. Man kann nur die Aufnahme anhalten und dann selbst ein Screenshot machen. Weiter wurde die App seit zwei Jahren nicht aktualisiert. Alles in allem ganz okay aber nichts wirklich tolles. Schade, der Ansatz war gut.

### 4/5 — Super app !

*2024-08-13, version 4.9.4*

Très ergonomique et fonctionnelle, précise. Mais malheureusement l’app compagnon sur la montre ne fonctionne plus…
Le rendu sur l’Ultra 2 ne rempli pas tout l’écran et surtout l’app ne répercute aucune mesure prise sur le téléphone…

### 5/5 — Very Good with AimPoint

*2024-04-14, version 4.9.4*

I use it for Aimpoint Percentage to measure the green slope.  I have compared it with the Aimpoint instructor tool, and it was accurate.

### 5/5 — Top

*2023-09-12, version 4.9.4*

Assez précis ! Plusieurs niveaux de zoom. Par contre sur iPhone 14 pro max l’image est légèrement de travers…

### 4/5 — Apple Watch?

*2023-08-17, version 4.9.4*

This always integrated with Apple Watch, but hasn’t worked for a while. All fully updated. Any ideas? Thanks.

### 5/5 — Great app and support

*2022-12-20, version 4.9.4*

I’ve had this app on all my phones since I guess it came out. I know it’s been quite along time. What is interesting is apps come and go but this app has always received updates. I have great respect for developers that keep apps like this working.

## Frequently asked questions about Clinometer + bubble level

### What does the Clinometer + bubble level app do?

This app is a professional tool for measuring slopes and angles with high precision. It utilizes all sides of your device and the camera, offering various modes like Clinometer, Camera, and Bubble Level for different measurement needs.

### What are the key features of this slope measurement tool?

Key features include multiple measurement modes, the ability to measure relative angles, advanced two-way calibration on all sides, speech synthesis for readings, five different unit modes (degrees, percentage, rise over run), a motion-sensitive lock, and a peer mode for measuring angles with two devices.

### Is this app free to use?

The app is free to download and use, but it offers in-app purchases. This means that while the core functionality is available for free, certain advanced features or options might require a purchase.

### What devices is this app compatible with?

The app is designed for iPhone, iPod Touch, and iPad devices. It leverages the specific capabilities of these Apple devices to provide accurate measurements.

### What are common use cases for this app?

Common use cases include aligning frames, measuring arbitrary slopes precisely for sophisticated applications, roof slope measurement, and general construction or DIY projects where accurate angle and slope readings are essential.

## Version history (last 5 releases)

### 4.9.4 — 2022-12-18

Fix rotation issue

### 4.9.2 — 2020-01-03

- Fixes peer connect feature to display measurement across iPhone/iPad devices
- Bugfixes and performance improvements

### 4.9.1 — 2019-09-29

- Fixes missing calibration button on latest iOS
- Support of all new iPhone models
- Bugfixes and performance improvements

### 4.9 — 2019-09-25

- Fixes missing calibration button on latest iOS
- Support of all new iPhone models

### 4.8 — 2019-08-06

◆ Camera Mode can now be zoomed 1x - 16x
◆ Bugfixes & performance optimizations
Thanks for your support!

## Apps similar to Clinometer + bubble level

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Bubble Level Plus+](https://appshunter.io/ios/app/bubble-level-plus-plus/id618064263) | 4.6 (15,219) | Free | Utilities |
| [Measure Angles - Bubble Level](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311) | 4.2 (1,969) | Free | Utilities |
| [Bubble Level 2022](https://appshunter.io/ios/app/bubble-level-2022/id1352996393) | 4.7 (6,398) | Free | Utilities |
| [Bubble Level for iPhone](https://appshunter.io/ios/app/bubble-level-for-iphone/id465613917) | 4.6 (111,638) | Free | Utilities |
| [Bubble Level: AR, Angle Finder](https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382) | 4.5 (689) | Free | Utilities |
| [Pocket Bubble Level XXL](https://appshunter.io/ios/app/pocket-bubble-level-xxl/id876323966) | 4.8 (16,245) | Free | Utilities |

## More apps by Peter Breitling

- [Contacts last entries & search](https://appshunter.io/ios/app/contacts-last-entries-and-search/id294325239)
- [Bubble level and Clinometer](https://appshunter.io/ios/app/bubble-level-and-clinometer/id304152770)
- [MagnetMeter](https://appshunter.io/ios/app/magnetmeter/id346516607)
- [AccelMeter](https://appshunter.io/ios/app/accelmeter/id346525189)
- [iSetSquare](https://appshunter.io/ios/app/isetsquare/id382820922)

All apps by Peter Breitling: https://appshunter.io/developer/286215120

## Related topics

[clinometer](https://appshunter.io/ios/topics/clinometer) · [vehicle clinometer](https://appshunter.io/ios/topics/vehicle-clinometer) · [bubble level and clinometer](https://appshunter.io/ios/topics/bubble-level-and-clinometer) · [angle gradient inclinometer](https://appshunter.io/ios/topics/angle-gradient-inclinometer) · [clinometer free](https://appshunter.io/ios/topics/clinometer-free) · [clinometer bubble level](https://appshunter.io/ios/topics/clinometer-bubble-level) · [slope calculator & arc finder](https://appshunter.io/ios/topics/slope-calculator-arc-finder) · [peter breitling](https://appshunter.io/ios/topics/peter-breitling) · [car clinometer](https://appshunter.io/ios/topics/car-clinometer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*